High-bearing-capacity tensile energy-consuming seismic isolation device with multiple adjustable sliding surfaces

Abstract

The invention discloses a high-bearing-capacity tensile energy-consuming seismic isolation device with multiple adjustable sliding surfaces, and belongs to the technical field of constructional engineering structure seismic isolation. The seismic isolation device comprises an upper connecting plate, an upper flange plate, a plurality of U-shaped supports, a curved surface sliding block, a curved surface sliding groove, an upper sliding surface, a lower sliding surface, a lower flange plate and a lower connecting plate. The vertical distance between a top sliding surface of the curved surface sliding block and the upper sliding surface is equivalent to the vertical relative displacement of upper limbs and lower limbs of the multiple U-shaped supports of the same specification, and is also equivalent to the vertical relative displacement between the upper flange plate and the lower flange plate. The radius of curvature of the top sliding surface of the curved surface sliding block is the same as the radius of curvature of the upper sliding surface, and the radius of curvature of a bottom sliding surface of the curved surface sliding block is the same as the radius of curvature of an inner sliding surface of the curved surface sliding groove. The multiple U-shaped supports of the same specification are arranged. The seismic isolation device is high in bearing capacity, good in horizontal seismic isolation, high in tensile energy-consuming characteristic, economical and practical, and environmentally friendly.

Description

technical field [0001] The invention belongs to the field of seismic isolation of civil engineering structures, and more specifically relates to a high-bearing-capacity tensile energy-dissipating seismic isolation device with multiple adjustable sliding surfaces. Background technique [0002] The seismic isolation technology of civil engineering structures mainly isolates the ground motion from the superstructure through the isolation device, so as to achieve the effect of reducing the seismic response of the structure. [0003] The existing types of isolation devices mainly include natural rubber isolation bearings (LNR), lead rubber isolation bearings (LRB), and high damping rubber isolation bearings (HDR). These isolation bearings are widely used in many civil structures, especially those sensitive to earthquake action, wind load, blast impact load, etc. However, with the development of contemporary civil structures towards large-span, super-high-rise, large-scale comple...

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Problems solved by technology

However, with the development of contemporary civil structures towards large-span, super-high-rise, large-scale complex, high surface pressure and other structural forms, traditional seismic isolation bearings may have insufficient bearing capacity and weak tensile capacity, making seismic isolation bearings problems such as not working properly

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